Finding the Third Proportional to 291,882 and 443,712

Step by Step Solution

1. Step 1: Write the proportion equation
   291,882 : 443,712 = 443,712 : x
2. Step 2: Convert to fraction form
   291,882/443,712 = 443,712/x
3. Step 3: Cross multiply
   291,882x = 443,712 × 443,712
4. Step 4: Simplify right side
   291,882x = 196,880,338,944
5. Step 5: Solve for x
   x = 196,880,338,944/291,882
6. Step 6: Final answer
   x = 674,520.32